Many sleepers need extra time to adjust to a new mattress. That's why we require you take at least 21 days to try your mattress before returning it. 

Mattresses need to be broken in

Though the materials in a new mattress are flexible, they are also strong and rigid. Like buying a new pair of shoes, they might feel uncomfortable at first because the materials haven't become flexible and moldable with repeated use. The same thing applies to a bed; it may not feel completely comfortable until the materials have stretched and softened.

You need to get used to your new mattress

The break-in period allows time for your mattress to adjust to you, but also for your body to adjust to it. If your old mattress was beginning to break down, your body may have overcompensated to make you feel comfortable. A new sleeping surface means your body may have to readjust to the support of your new mattress. 

Also, if your new mattress is made with different materials than your old one, these materials may feel strange at first. For example, switching from a memory foam to an innerspring mattress may increase the motion transfer from your sleeping partner’s movements, whereas the switch from innerspring to memory foam can initially make you feel warmer overnight than you're used to.

You don't want to make a hasty decision

After the break-in process, you might feel different about your new mattress. Though the adjustment time may be inconvenient at first, it's normal for your body to take up to a month to fully adjust to a new bed. The feel of a mattress can improve a lot during the break-in period, so save yourself time and money and stick with it. You'll likely be glad you did. 

"Love it! Took me two weeks to adjust from my previous traditional mattress but now it’s my favorite!"
Nancy M.
GoodMorning.com mattress customer