Bedshe via Amazon discounts the Bedsure Waterproof Hypoallergenic Mattress Protector in the sizes listed below via coupon code "3FH4JQL2". Plus, Prime members bag free shipping. The deals, ending May 31, with prices after coupon:

• Twin for $8.62 ($21 off)
• Full for $9.74 ($30 off)
• Queen for $10.87 ($39 off)
• King for $11.99 ($48 off)