The Siena Memory Foam Mattress is cheaper than Black Friday in epic 4th of July Amazon mattress sale

Siena Memory Foam Mattress: twin was $199 now $149 at Amazon
In our Siena Memory Foam Mattress review, our side and back sleepers were pleased with the full-body support of the Siena all-foam mattress. So was our lone stomach sleeper, who liked that her hips didn't sink below the rest of her body. It did take a few nights for the mattress to soften slightly, though, to give that memory foam 'hug'. We always rate the Siena is the best mattress for under $400, but the current Amazon discount makes it even cheaper. The 10" Siena mattress is now $278 (was $349) for a queen size at Amazon — that's not a typo, just an exceptional mattress sale. And Siena's usual perks (we're talking a 180-night sleep trial and 10-year warranty, which are standard in the mattress industry) are still included.

<p><strong>Our score: <a href="https://www.tomsguide.com/reviews/siena-memory-foam-mattress"><strong>★★★★<br /><strong>User score: <a href="https://target.georiot.com/Proxy.ashx?tsid=45724&GR_URL=https%3A%2F%2Famazon.com%2FSiena-Queen-Mattress-Breathable-Warranty%2Fdp%2FB09RF1CGK4%2Fref%3Dsr_1_6%3Fcrid%3D18O1PSYUM553V%26dib%3DeyJ2IjoiMSJ9.ROsqCQJEtek4vrxGAP7b7xh6dFKbo-jJazZ05tNjHzr53r3hr1_EEmx9obZgUq7ipbxEgPmoy7WgAYMAaSdsQfoQ2RtvBtYiHlCO2ujvzArsiurgBphSQrVUAkCVIOPUKeplNDeMkCPbdwoTarkU-YEtQwQ6KQTuO_U7dj9lBG1xQr-jRIzuv1ea6jqfohxjlfKH2i0CRjEfBtQ_RYkuwfZeIeRopb5PyQiFY70CIyH-J3skXrkGs-hj6Nsh2Mpp1XpPh3riakRfOdf3ZwapABjOc8Y_Pigd21aQNd673oU.xJrmaSJelmpWlVucx7Bkj3ik7wtbwtVE5M-5thI3v1U%26dib_tag%3Dse%26keywords%3Dsiena%252Bmattress%26qid%3D1751386990%26sprefix%3Dsiena%252Bmattres%252Caps%252C213%26sr%3D8-6%26th%3D1%26tag%3Dhawk-future-20%26ascsubtag%3Dhawk-custom-tracking-20" target="_blank"><strong>★★★★½<strong> (600+ reviews)

Siena Premier Hybrid mattress: twin was $299 now $249 at Amazon
Although the memory foam Siena is comfortable in all sleep positions, combination sleepers might prefer a bouncy, responsive sleep surface, like that delivered by the 10" Siena Premier Hybrid mattress, to help them move between positions through the night. This mattress comes in three firmness levels at Amazon (plush, medium and firm) — an option that usually only comes with luxury rather than budget beds (that's why we rate it as one of the best hybrid mattresses you can buy right now.) With up to 25% off this mattress, a queen size sits at $402.54. This is only a marginal extra saving compared to the Siena mattress sale we usually see (a queen Siena Premier Hybrid usually sells for $424), but $20 is still a saving.

<p><strong>Our score: <a href="https://www.tomsguide.com/mattresses/siena-premier-hybrid-review"><strong>★★★★<br /><strong>User score: <a href="https://target.georiot.com/Proxy.ashx?tsid=45724&GR_URL=https%3A%2F%2Famazon.com%2FSiena-Full-Hybrid-Mattress-Pressure-Relieving%2Fdp%2FB0CL11DNFX%2Fref%3Dsr_1_7%3Fcrid%3DKRJTDLCBUK75%26dib%3DeyJ2IjoiMSJ9.lvoKGANZG3qv8yNKpy7O7IIW3h3_BwAUM6lBDuGYDkZHZCMS-9MybyjgZmJy19y10zcHgOoulIWwpZLNBD2Q5z_WPtpbVrDhBIVDN5e509e0JqK1CMF1kTJxh1gpwNkNucVbsDcQAe1iQpOk5pR8-bLx3SZ8FxZQXnsSSWnaYwQJT3da2NZt2-K4I9PKPxraOvWWTbATH2iXVxY5PHzvic21mRhs5BQMQveMnJ4a3zWQqqRoQUCPO35fmOSL2TqAJKWgPhnsQ9FflzsNNYGEzMoOSEfq1Dj7tiNjGFa-vis._88ys737Gjm9VztOlAhB87kCbVntlbumT4WrRkaX1V0%26dib_tag%3Dse%26keywords%3Dsiena%252Bpremier%252Bhybrid%252Bmattress%26qid%3D1751446489%26sprefix%3Dsiena%252Bpremier%252B%252Caps%252C232%26sr%3D8-7%26th%3D1%26tag%3Dhawk-future-20%26ascsubtag%3Dhawk-custom-tracking-20" target="_blank"><strong>★★★★½<strong> (60+ reviews)