Amazon Prime Day mattress deals 2026: Early sales from £77

The Octasmart Deluxe Memory Foam Mattress in a light blue bedroom. A Prime Day deals badge can be seen in the bottom left foreground. — (Image credit: Future)

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Amazon's big Prime Day sale is fast approaching, but we're already seeing huge deals on top-rated mattresses at the retail giant. That's why we've rounded up our favorite mattress deals at Amazon this June, including hidden gems for smaller budgets to boxed beds by big-name brands such as Simba and Nectar.

One standout deal is the Linenspa Memory Foam Hybrid Mattress, now £76.79 for a single at Amazon, a budget bed we've tested and rated ourselves. However, there's plenty more where that came from, with Amazon positively heaving with mattress deals spanning different designs and budgets.

There's over 20,000 mattresses on Amazon but you don't need to scroll through all those — these are the early Prime Day mattress sales we think are actually worth shopping. We're also sharing our advice on finding a good-quality mattress from Amazon. No Prime membership? Visit our best mattress guide to find all of our favorite tried-and-tested beds from outside Amazon...

Amazon Prime Day mattress deals 2026: Top 5 mattress sales

Amazon Prime Day mattress deals 2026: FAQs

When is the Amazon Prime Day sale 2026?

A person lies on the left side of the Nectar Premier Memory Foam mattress in our sleep studio, while another person jumps on the left hand side, testing motion isolation — (Image credit: Future)

Amazon Prime Day has traditionally taken place in mid-July, but the big sales have come early this year. Now held in June, Prime Day 2026 starts on June 23rd and has a closing date of June 26th.

This means that Prime Day is a four-day event, but we recommend shopping on the opening day to grab the top sleep deals before they sell out fast.

How do I choose a good mattress at Amazon?

When choosing a mattress on Amazon (especially during Prime Day), you'll likely be bombarded with ultra-cheap deals that can seem too good to be true — and that'd because they often are.

The Simba Simbatex Cool Mattress placed on a wooden bedframe and covered with neutral coloured bed linens and pillows — (Image credit: Simba Sleep)

So, when looking for a mattress on Amazon, choose a mattress thickness that's over 20cm (8") tall, as anything thinner will be totally unsupportive. We usually recommend 23cm (or 10") and above for most adult sleepers.

Look out for the green "Customers usually keep this item" badge, which is a good sign that the mattress is of decent quality.

Also, take a look at customer ratings and reviews, especially if the mattress is from a brand name that you don't recognise. While brands such as Simba, Nectar, and Dormeo are brands you can trust, you should probably avoid a cheap mattress from an obscure brand with only three reviews and an overall rating of under 4 stars.

Frances Daniels is a PPA-accredited journalist and Sleep Staff Writer at Tom's Guide with an MA in Magazine Journalism from Cardiff University. Her role includes covering mattress and sleep news and writing sleep product reviews and buyer's guides, including our Best Hybrid Mattress 2025 guide. She is interested in the relationship between sleep and health, interviewing an array of experts to create in-depth articles about topics such as nutrition, sleep disorders, sleep hygiene, and mattress care. She is also our specialist on mattress toppers — producing bed topper reviews and taking care of our Best Mattress Toppers 2025 guide — and leads content relating to fiberglass-free beds for a non-toxic sleep. Outside of Tom's Guide, she has written for Ideal Home and Marie Claire.