The best mattress deals you can get on Amazon Prime Day 2021 - and what to know about shopping for one during the event

If you've been on the fence about trying out a bed-in-a-box, Amazon Prime Day 2021 offers lucrative discounts to help you take the plunge. While we don't know when the event will take place, we do know one thing - it's a perfect time to buy a mattress.

Not only do the deals on Amazon offer great savings for Prime members, but you can expect other retailers - including direct-to-consumer brands like Casper, Leesa, and Dreamcloud - to offer their own sales to compete with the event. No matter what mattress you're in the market for, it's likely you'll find savings of a couple hundred dollars during Amazon Prime Day.

If you haven't quite settled on what mattress is best for you yet, we've outlined picks in our mattress buying guide for every type of sleeper. We also have dedicated guides for the best mattresses for side sleepers, the best foam mattresses, and best mattresses for back pain.

As Prime Day is on the horizon, we'll continue to update this guide with the best deals. For now, check out our coverage of Memorial Day mattress sales for the most up-to-date information on mattress deals.

What mattress deals can I expect during Prime Day?

We won't know the specific deals until Prime Day rolls around. If you're in a hurry, we rounded up the best mattress sales happening this May, which may spill over into Amazon Prime Day.

What is Amazon Prime Day?

Amazon Prime Day is an exclusive shopping event where everything from mattresses to coffee machines goes on sale. This one-day event grew in popularity and is now a 48-hour online deal-dash, so be sure to have Amazon as your prime (no pun intended) tab in June or July if you plan on shopping the deals.

When is Amazon Prime Day?

Amazon has not yet disclosed when its annual Prime Day event will be, but it's projected to take place in June or July. Once we have more information on its official date, we will update this FAQ.

Do I have to be a Prime Member?

Yes, you have to have Prime-member status in order to qualify for the various deals, but if you're not ready to commit to a full membership, you can sign up for a free 30-day trial to shop the sale. Sign up below so you don't miss out.

What's the best mattress to buy?

When shopping for a mattress, you'll want to consider any medical conditions you may have, your ideal sleep position, body size, and preference. Side sleepers tend to prefer a softer mattress, while back sleepers, stomach sleepers, heavy people, and those with back pain need the support of a firmer mattress to bring their spine into proper alignment. If you share a bed with someone who has wildly different sleep preferences than you, you may benefit from a Split King mattress or an adjustable air bed like the Sleep Number 360 i8 Smart Bed.

We've tested dozens of mattresses over the years, so much so that we put together a comprehensive guide to the best mattresses. If you're looking for a budget mattress available on Amazon, we love the Zinus Cooling Gel Memory Foam Mattress. Other plush favorites include brands like Dreamcloud, Tempur-Pedic, and Leesa.

How much should I spend on a mattress?

Price doesn't take center stage as much as comfort and preference. However, based on rigorous testing and research, our favorite mattress, the Dreamcloud Premier Hybrid Mattress, is just under $1,400. But, our best budget option, Zinus, is often available on Amazon for less than $350. Here's our breakdown on what you can expect to spend on a new mattress:

Should I buy my mattress online or in store?

You may find peace of mind in going to a store to lay down on a mattress before you buy, but in our experience it takes several nights of sleeping on a mattress to know if it's right nfor you. Online retailers can deliver mattresses right to your door and offer lengthy risk-free trial periods so you can give your bed a realistic shake before committing.