How Long To Let Leesa Mattress Expand

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Mattress Ruined. What Happens If You Sleep on Your Memory Foam Mattress Before 24 Hours?

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How Long to Let Your Memory Foam Mattress Expand?

The general rule is to give your new memory foam mattress 48 hours to expand and inflate to its proper size.

The real answer is not that simple. Every memory foam mattress has its unique requirements.

The following chart shows what each manufacturer recommends. Below that we go over where the 48 hours comes from and if you can immediately sleep on your new mattress.

Mattress Expansion Times For Each Manufacturer

amerisleepCan lay on it right away but could take 8 hours for the corners to expand fully and you should wait 2 hours before putting sheets on.
BEDBOSSShould decompress in 24 hours, but let it sit for 2 hours before moving it to the bedroom.
Bedinabox“It expands in about 3 minutes” is what I got when I emailed them. This seems too fast; I would still give it a few hours to be on the safe side.
CasperCan expand and be ready to sleep on in a few minutes but keep in mind that some will take longer.
Classic BrandsAllow 24 to 72 hours for the mattress to regain its full shape. If the mattress gets to its full height, it’s ready to use.
Dreamfoam Bedding6 to 7 hours from opening.
HelixGive it 2 hours to regain its shape, and you’re done.
LaylaWill take its full shape within minutes, and you can sleep on it right away. If you’re sensitive to smell give it a few hours to air out.
LeesaMay take up to an hour to expand but give it 24 hours to fully expand and be at its best
LinenspaUp to 48 hours but they do say you can jump on it as soon as you like. If anything they say your body heat can help speed up the expansion process.
LUCIDUp to 48 hours, but if it’s fully expanded after 24 hours you can go ahead and sleep on it.
LullWill do most of the expanding in 2 to 5 hours and fully expand in 24 to 48 hours.
MLILYShould be ready in 24 hours. Walking on it while it’s on the floor can help speed up the process.
NectarBetween 24 to 72 hours to expand.
Nest BeddingYou can sleep on it right when you open it, but it can take up to 24 to 48 hours for it to fully expand.
Olee Sleeplet it expand up to 72 hours
PuffyAllow it to expand and breathe for a few hours before putting bedding on it.
Purest Of AmericaAllow 24 to 72 hours to fully recover.
Signature SleepWait at least 48 hours.
Tuft & NeedleOnly takes several hours to reach the proper specifications, but in some cases, it may take up to 5 days.
TuloAllow it to sit for an hour before using it.
Zinus48 to 72 hours to fully decompress. Zinus recommends you sleep on the mattress during this time as it helps to full up the mattress. If after a week it hasn’t expanded, please contact them.

Don’t see your mattress? Go ahead and give it a couple of hours to expand, but let me explain why.

Can You Sleep on a New Memory Foam Mattress Straight Away?

The reason why you wait 24 hours, 48 hours or 72 hours is an old saying that people keep repeating.

As shown from the chart a significant number of manufacturers report shorter times and a good bit suggest sleeping on the mattress the first night. The reason is for your constant movements, and body heat loosens the foam. The more lose the foam, the better it expands.

Where The 48 Hour Memory Foam Expansion Time Came From

The first generation of memory foam mattresses is where this wait time wives tale came from. More time was needed for older memory foam mattresses to air out there odors.

The mattresses today don’t smell as bad; I would still recommend letting them air out for a few hours to absorb the smells of its surroundings. I know it sounds odd, but it’s well worth doing.

What if my mattress says to wait a few hours? – Well, it’s better to play it safe than sorry. The people that best understand your mattress are the ones who made it.

What If Your Memory Foam Mattress Is Not Inflating?

No need to worry if your memory foam mattress is not expanding; here is what you do.

Get the mattress flat as possible on the floor. Wearing clean socks walk on the mattress. The constant moving around combined with your body heat expands the mattress. I like to think of it as a mattress massage.

After massaging the mattress place it back on the bed frame and sleep for a few nights.

Keep in mind:New mattresses are like new shoes; they need to be broken in. Over the years you have gotten used to your old mattress, so the new one is going to feel different. We tend to forget this because we only buy mattresses every decade or so.

What To Do After Your Memory Foam Mattress Has Expanded?

I mean, you spent all this money you probably want it to last as long as possible?

If you want your mattress to last, you need a mattress protector.

Your mattress is a giant sponge, and it will soak up all the sweat, soda, dead skin and other nasty stuff you do in bed. Those liquids sit there not only making the mattress dirtier but destroying the function of the structure. It’s hard to work correctly when “waterlogged” with juices.

Plus, modern-day mattress protectors feel and look like regular bed sheets. I even have a review on the very one I use on my mattress. They’re not even that expensive either; I consider it crazy when people don’t use something so practical and affordable.

How Long Should You Leave a Memory Foam Mattress Before Sleeping on It?

It’s best to let your memory foam mattress expand for 48 hours. If you can’t give 48 hours then allow the mattress to expand for 6 hours before sleeping on it.

What Happens If You Sleep On Your Mattress Too Soon?

If you sleep on your mattress before it’s expanded it’s not the end of the world. In fact, many mattress manufacturers recommended you sleep on it the first night because your body heat helps to expand the foam.

I would not worry about it too much. The goal is to give the mattress a few hours before you sleep on it. It can take some mattress a whole week to reach its correct size and sleeping on it won’t hurt.

It’s Been A Week And The Mattress Has Not Expanded.

If it’s been a week and the mattress has not expanded correctly then, unfortunately, you have a defective mattress.

The good news is that this is usually rare. If it’s been a week no need to keep fighting it, contact the company you bought it from to check out the return policy. If you’re curious about returns and what they do with the old mattress check this out.

If you have to return the mattress and want a new one I’ve had good luck with Zinus Green Tea Mattress.

How do you set up the Leesa Mattress?

We recommend moving the box into the room where you will set up. Then, follow these steps:

1. Unbox your Leesa Mattress on its side, next to the foundation or floor. Avoid using a sharp object to open the box as you run the risk of unintentionally slicing your Leesa.

Unboxing by yourself? Try placing your foot on one of the box flaps to hold it in place while you pull the bedroll out.

2. Position your rolled up Leesa on any solid or slatted foundation and remove the outer layer of plastic wrap.

You’ll notice that your Leesa has already started to expand at this point.

3. Unwrap and unfold the mattress and tear away the inner plastic. If you tear the inner plastic at the top of the bed, you can pull it straight down and off like a sock.

4. Watch your Leesa expand and take shape.

Note: It may take up to an hour for your Leesa to fully expand and a few days to fully firm up. Any slight odor will dissipate shortly after setup.

How Long Does It Take A Casper Mattress To Expand

Casper bed mattress is one of the most popular memory foam mattresses today. The business has actually won numerous awards. The Casper bed mattress has featured on Business Insider, Fortune, CNN, Tech Insider, Inc. and Forbes among other reputed print and electronic media. You can look for Casper mattress on Amazon, there is the official site and you can now likewise buy it at Target stores. The business likewise has its own official brick and mortar shops at San Francisco and Torrance in California, Denver in Colorado, West Palm Beach in Florida, Atlanta in Georgia, Chicago in Illinois, Boston in Massachusetts, Short Hills in New Jersey, White Plains and Huntington Station in New York and one in the city, King of Prussia in Pennsylvania, Austin and Houston in Texas. How Long Does It Take A Casper Mattress To Expand

Casper mattress has actually been acquired by nearly half a million individuals. The mattress is particularly understood for its engineering feat, for inducing a sensation of weightlessness, for facilitating breathability regardless of being a memory foam bed mattress and hence being a tad more comfy than some similar mattresses that have the tendency to get rather hot and uncomfortable through the night, specifically throughout summer and damp seasons. Casper mattress features a hundred night trial free returns. You can purchase the mattress online or at a shop and you would get exact same day white glove delivery in a few areas.

Features of Casper Mattress

The flagship product of the business has a layer of memory foam and a layer of poly foam atop it. The top layer is springy to make sure a sense of balance and convenience. It likewise contributes to the feeling of weightlessness as soon as you put down. The foams are breathable owing to the open cells in the top layer so you would not feel too hot or uncomfortable. Sweating is not a concern with Casper bed mattress. It comes with a zip-off knit cover that is quite simple to clean and keep, hence assuring sturdiness. The bounce is not the best among memory foam bed mattress as Casper is a bit more resilient but sleepers will feel some reasonable bounce, which is rather preferable and supplies relief from pressure. The density of the memory foam is high enough to offer sufficient support to the numerous pressure points in the human body. There is a transition layer that distributes your bodyweight evenly. The base layer in addition to the 3 other layers is strong enough to offer stable assistance and they add to the sturdiness of the entire Casper mattress.

The open cell responsive memory foam has an adaptive capability and it also supports transition as you move from one position to another shifting your bodyweight. The Casper mattress comes in six sizes. Twin is 39″ x 75″ x 10″ and weighs 44 lbs. Twin XL is 39″ x 80″ x 10″ and weighs 46 lbs. Full is 54″ x 75″ x 10″ and weighs 60 lbs. Queen is 60″ x 80″ x 10″ and weighs 71 lbs. King is 76″ x 80″ x 10″ and weighs 91 lbs. CAL King is 72″ x 84″ x 10″ and weighs 90 lbs. All Casper mattresses are designed and assembled in the United States. The foams used in Casper mattresses have Certi-Pur certification. The certification implies the foams were made without any chemicals that cause ozone depletion. The materials are also regulated according to the volatile organic compound emissions standards for quality of indoor air as stipulated by the Consumer Product Safety Commission. Casper mattress comes with 10 years limited warranty. There is free shipping & free returns in the United States and Canada. Shipments are via UPS Standard in the US and Canada. Shipping takes three to five business days depending on the location. Same day delivery is available in parts of Los Angeles, San Francisco and New York City.

Casper Mattress Price

Casper mattress price starts from $550, which is the cost of the Twin size. Twin XL would cost $600, Full is $800, Queen is $950, King is $1,150 and CAL King is also $1,150. You can look for a Casper mattress coupon. Usually, there are offers that can help you save around $50 on the $950 worth Queen Casper mattress. You can discover comparable discount rates or Casper bed mattress coupon for all sizes. There are affiliates and partners of the business that offer routine discount rates. Casper too hosts sales from time to time so you can have the Casper bed mattress rate decreased to a level.

Casper Mattress Reviews

There is no lack of Casper bed mattress evaluations. There are more than thirty seven thousand Casper mattress evaluates on the official site alone. You would have the ability to find Casper bed mattress Amazon evaluations. You can also discover evaluations on Target and other affiliate websites. You can refer to comprehensive analyses of Casper Vs Tuft and Needle, Casper Vs Leesa and Casper Vs Purple if you wish to compare different bed mattress prior to making a notified choice. Casper is a trustworthy brand name. The company has been around for a while. There are individuals who have been utilizing Casper mattress for several years now and the business has actually been showing its engineering throughout the years. Reliability or trust is not a concern with the company. If any at all, there might be superior bed mattress out there that will draw your attention far from Casper. How Long Does It Take A Casper Mattress To Expand

Nectar Mattress is Superior to Casper Mattress

Nectar and Casper mattresses are both foam mattresses. Both use memory foam but where Casper mattress has one layer of memory foam and one layer of poly foam, Nectar mattress has two layers of memory foam. Casper mattress has four layers while Nectar mattress has five layers. Casper mattress is thinner than Nectar mattress by one and a half inches. Nectar mattress allows your body to sink a bit more than Casper mattress, which is preferred by many as the bodyweight gets distributed all the more evenly and weightlessness is more than just a perception. While both mattresses can isolate motion and are durable, Nectar mattress is considerably cheaper. A queen size Nectar mattress will cost you $795 and that is without any discount. You can easily find a coupon or some discount that will bring down the price by more than $100. Considering the differences, Nectar mattress is clearly superior and it is what you should consider.

How Do I Set Up My Mattress in a Box?

You come home to a large white and blue box. Step one: Bring that puppy inside!

Where to unbox your bed-in-a-box

First, move your Leesa box to the room where you’ll be setting up your bed. Before you set up the mattress, make sure you have the right bed frame for your new mattress. In order to give you the proper support when you sleep, the Leesa mattress should be placed on a flat, rigid surface, like a platform bed. If you have a slatted bedframe, be sure the slats are no more than three inches apart – this gives the Leesa mattress the firmness and support it needs to give you the ultimate sleeping experience.

How to unwrap your Leesa Mattress

Only 7 steps stand between you and sleep nirvana.

Step 1: Open the box.

Step 2: Keeping the mattress wrapped, slide it onto the surface of your bed frame.

Step 3: Proceed with caution! Using a pair of scissors, carefully cut the first layer of plastic, being careful not to cut into the foam of your mattress.

Step 4: Repeat, removing the second layer of plastic around your mattress.

Step 5: Unroll your mattress. It’ll still be compressed tightly and folded in half.

Step 6: Unfold the mattress and while it’s still compressed and in its third layer of plastic arrange it on your bed frame or platform. (Don’t open it yet! it’s easier to position correctly when it’s still compressed and in the plastic.)

Step 7: Once positioned, carefully cut away the final layer of plastic around the perimeter. Pull the plastic out from under your Leesa with matador-like flair.

Instantly, the base, memory foam and cooling premium top layer of your Leesa mattress will begin to expand, decompress and fill with sweet, fresh air.

How long will it take my memory foam mattress to fully expand?

Patience, young grasshopper. It will be impossible to resist diving straight into your Leesa, but let your mattress fully decompress before you begin sleeping on it. In an hour your Leesa will feel great; four hours and it’s almost there; but to get the ultimate support and feel from your memory foam, give your mattress a full 24 hours to decompress and you can expect perfection.

Do I have to put sheets on it?

We know, your new bed is so beautiful. Do you really have to cover it with sheets? Your Leesa mattress was created with clean design in mind. The single-piece cover is a soft-to-the-touch lycra/poly blend that is so soft we’ve had people actually say they prefer not to put sheets or a mattress cover on it. But that’s entirely up to you.

The 3 Biggest Mistakes Leesa Mattress Buyers Make

Get answers about firmness, odors, sleep positions, and more in this Leesa mattress review. Learn how to avoid the biggest shopping errors you can make when buying this factory direct bed. Discover twenty-one important facts about what types of sleepers it’s made for, the warranty and the company before you purchase. And finally see how it compares to five of its biggest competitors from Casper to Tempurpedic.

(Buying from links on this website sometimes adds a bit of cash to my lumpy mattress fund. It doesn’t cost you more. And helps me spread sweet dreams everywhere.)

1) leesa mattress Trial Period Confusion

Don’t screw this up if you want to be able to try a different bed

You can have a great mattress buying experience even if you decide you don’t want the first one you buy. But only if you don’t get confused by the trial period details. And it is very easy to get that mixed up. Because the return policy of this mattress on Amazon recently changed and is much longer than most other goods sold at that company.

Leesa’s LONG Return period on Amazon- The Amazon return/trial period is100 days. Really. I confirmed this by phone with both Amazon and Leesa. But since this is NOT Amazon’s standard 30 day policy,document it. This will help you in the event that you don’t like it, want to return it, and you get an uncooperative Amazon return specialist ‘helping’ you.

  1. Take a screen shot of the Amazon Leesa mattress page with the "100 Night Trial" part of the product title showing as well as the price that you paid.
  2. Print the screen shot out and keep it with your warranty and payment information.
  3. Keep a digital copy in case you need to send it to Amazon.
  4. To initiate a return, visit Amazon’s Online Return Center to request a return authorization from the seller.

If you’re having problems with the standard online return center, call 866-216-1072 and ask to talk to a “Large Items” person to get your return started. Don’t kill yourself trying to re-compress the mattress. Follow their instructions. Amazon will arrange for the pickup and transportation.

Of course, Leesa wants your experience with their bed to be “love at first night.” People can usually tell within two weeks if a mattress or bed will work for them. If you can’t sleep easily after a month, DON’T spend 3 months being miserable just because you think that you’ll magically change your mind after 89 days.

  • $100 return fee if you live in Alaska or Hawaii
  • The manufacturer coordinates the pickup from your home
  • You get a 100% refund once it has been picked up


The mattress cover, though lovely to look at and feel, is not removable and therefore not washable.


Because you won’t discover 21 important characteristics, shipping and warranty facts about the Leesa bed or how it compares to its 5 major competitors. So keep reading and find out…


Firmness (Fact #1)

Medium-firm – On a firmness scale of 0-10 (soft to firm) it’s about a 6 out of 10.

Motion isolation (Fact #2)

The Leesa mattress has good motion isolation properties. You won’t fall into a valley towards your partner. They won’t wake you up when they get in or out of bed. You won’t notice when your pets jump onto the bed and turn around three times to get settled.

Is there support at the edge of the Leesa mattress? (Fact #3)

It’s not the same as the edge of an inner spring that has a thick wire inside the edge part. When you sit on the edge it will compress three or four inches if you are an male of average weight.

How does it hold up over time? (Fact #4)

The manufacturer says to expect it tosoften a bitafter a year, and some buyers have said that it does. But if it gets actual dents or “body shadows” more than an inch deep, that is a defect that is covered under warranty.

Can I turn it over for even wear?(Fact #5)

No, you can’t. Like most memory foam mattresses, the Leesa mattress has a sleeping side and a support side. They are easy to tell apart. Rotate it, though, every month or two to avoid developing dents.


No. You can use any flat rigid surface. The warranty says you need to use a “matching, solid foundation, base, or frame substantial enough to support the mattress and occupant(s).”(Fact #6)

According to a rep of the manufacturer, you can even use it on a Murphy bed or a wall bed (which you can make yourself with a DIY kit) to turn an office or den into a guest room.

How long does it take to expand?(Fact #7)

You should let it expand for up to 60 minutes before sleeping on it. After several days it will reach its full firmness.

Can you collapse it again for moving?(Fact #8)

No, you have to move it the way it is unless you have an industrial strength vacuum sucker. It’s lighter than most mattresses but it can be floppy and doesn’t have handles.


No. On top, above the memory foam layer, is a layer of Leesa’s Avena™ foam. It’s not latex but it’s similar and it has more spring and airflow than memory foam. You don’t need to worry about night sweats or waking up because the bed is too hot.(Fact #9)

Will it get hard or cold in winter?(Fact #10)

No more than any other memory foam.Note:representatives of the manufacturer don’t recommend sleeping on top of heating pads or heated blankets because they don’t know what effect the extra heat from your particular appliance may have on how the mattress reacts.


Some people mention a faint odor or off-gassing that disappears within a few hours or days. This might just be the plastic packaging it came in though. Get that stuff out of your bedroom ASAP.

If there is a chemical odor strong enough to bother you and it lasts for more than a week, you should call to return it, and don’t be shy about it. You may have a chemical sensitivity or maybe you got a mattress that was made on a Monday.(Fact #11)


What sleep positions is it best for?(Fact #12)

  • It’s best for back sleepers unless they want a super-firm mattress
  • It’s good for stomach sleepers too, but heavier people may sink in too far to find it comfortable
  • It’s too firm for some side sleepers

Is it good for heavy/light people?(Fact #13)

The Leesa mattress is designed for people who weigh up to 300 lbs. But it might not be comfortable enough or last as long if you weigh more than 200 lbs.

People under 110 lbs may not exert enough pressure and therefore find it too firm.

Can I sit up in bed to read or watch TV?(Fact #14)

Yes, you can. You won’t make enough of a dent to affect the comfort of your mattress.

Is it good for children?(Fact #15)

Memory foam mattresses are not recommended for infants under one year old even though they might find it comfy. One reason is that they would be breathing chemicals. It’s fine for toddlers and older kids if they are in good health.

What about dust mites and allergens?(Fact #16)

It’s more resistant to dust mites than regular coil mattresses. The Avena foam is hypo-allergenic.


Here’s how the Leesa mattress sleep system is constructed:(Fact #17)

  • Polyester-lycra cover
  • Cool and soft, seamless
  • Not removable
  • Get a waterproof mattress protector
  • 2” Avena foam on top (3.6 lb/ft density)
  • Airflow, coolness, bounce
  • 2” memory foam in the middle (3 lb/ft density)
  • Body contouring and pressure relief
  • 6” high density support foam on the bottom
  • Strength, durability, support (1.8 lb/ft density)

Does it contain latex?(Fact #18)

No it doesn’t. Avena foam has latex qualities though it is more durable. It’s actually polyurethane.

  • CertiPUR-US certified
  • No ozone depleters, PBDE flame retardants, mercury, lead, other heavy metals, formaldehyde, or phthalates
  • Low VOCs (volatile organic compound)

What sizes and models does it come in?(Fact #19)

There is only one model and it comes in the following standard sizes:


Leesa has a 10-year full replacement limited warranty (for defects). An indentation bigger than 1 inch qualifies as a defect. And the warranty is void if the mattress was not supported on a rigid flat foundation.(Fact #20)

Can I get it through international or APO (Army) shipping?(Fact #21)


All of the mattresses compared here have their fans. Which one is better for you is a matter of preference. We have pointed out differences, some of which are very subtle.


The Leesa is a bit better for coolness on top because of the breathability of the Avena top foam layer. It’s also marginally better for minimal horizontal motion transfer.

Both are 10” mattresses but the Casper’s base is 1” higher, which means a bit less specialty foam on the Casper.

The Casper has a softer top layer and firmer next layer. With the Leesa, the “sinking in” feels more gradual. The Casper feels softer, but the Leesa contours better.

The Leesa has a nicer cover. The Casper is slightly less expensive.

Loom & Leaf vs Leesa

Loom & Leaf’s trial period is only 75 days versus 100, but both are more than enough time to decide if a mattress is right for you. The L&L has a 15 year warranty rather than the standard 10 year warranty that comes with the Leesa.

The Loom & Leaf uses plant-based foams, natural thistle flame retardant, and the cover is made of organic cotton. All of these make it more expensive though.

The Leesa is 10” thick and the L&L is 12” thick. The Loom & Leaf provides more compression support The Leesa is sleeker looking.

The Leesa is medium-firm (6/10) and the Loom & Leaf is the only mattress reviewed here that offers more than one model: medium-firm (6/10) and firm (8/10).

The Leesa comes compressed in a box and the Loom & Leaf is delivered and set up for you.

Purple vs Leesa

Both are medium-firm with the Purple being just a tad firmer.

The Leesa has the 2” Avena top layer, which is similar to latex for comfort and coolness, and it has the Lyrca cover. The Purple has a 2” hyper-elastic polymer top layer which is also similar to latex, but it one of the coolest mattresses ever. The polymer is put together in a way that optimizes airflow and the polymer itself doesn’t retain heat.

The biggest point in choosing between these mattresses is your weight: The Leesa is more consistent for different weights of people. The Purple is better appreciated by people over 150 lbs who will engage better with the polymer to get that “hug.”

The Leesa is less expensive.

Tuft & Needle vs Leesa

There’s a more extensive review on this bed here. But both are medium-firm with the Tuft & Needle being a bit firmer (6/10 for Leesa and 7/10 for T&N).

The Tuft & Needle is quite inexpensive for such a good mattress.

The Leesa has more of the specialty foam, which gives a softer feel and is comfortable for most side sleepers and those that are heavier. It also has a much nicer cover.

TempurPedic Flex Supreme vs Leesa

For starters, the TempurPedic mattresses are much more expensive than the other mattresses reviewed here. But it is with good reason that they are the mattresses that others are compared to.

Like the Loom & Leaf, the Tempur-Flex Supreme doesn’t come compressed in a box. It comes with a crew who will set it up for you.

The TempurPedic is thicker than the Leesa (11.5” rather than 10”) and the cover is removable.

The Leesa is slightly firmer (6/10 versus 5/10) but the TempurPedic is fabulous for people who want to sink down deeper.

TempurPedic, as a policy, doesn’t describe their construction materials. It also doesn’t offer a money back guarantee – you can only exchange it, and there is a charge for that.

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