Best Prime Day mattress deals: Get up to 50% off Nectar, Casper, Leesa

When you buy through our links, Business Insider may earn an affiliate commission. Learn moreThe best Prime Day mattress deal will save up hundreds on a new bed.Amazon/Business InsiderThere's no better time to wave goodbye to your uncomfortable mattress than Amazon Prime Day. If you've noticed your mattress sagging, you're not sleeping well at night, or you've had your current mattress for at least 10 years, it's time for an upgrade.We've compiled the best Prime Day mattress deals from our favor