Our mattress is only 8" thick; this cover is designed to fit a mattress up to 13" thick.
Therefore it didn't stretch tight, but that's certainly not the fault of the design.
Twin Mattress Protector Waterproof Soft & Breathable Terry, Noiseless Mattress Cover Fits Up -14'' Depth, Skin-Friendly Machine Wash Mattress Protector
29 Review
Protect Your Twin Mattress With Zippered Waterproof Encasements - Twin 2 Pack Included
14 Review
Biloban Box Spring Cover (4/5/7/9/13/17Inches) Twin, High Profile Waterproof Mattress Protector, 6 Sides Wrapping Zippered Mattress Encasement Cover
34 Review
Waterproof Twin XL Mattress Encasement With Zippered 6-Sided Cover, PlushDeluxe Premium Quality, And Cotton Terry Surface (Fits 12-15 Inches H)
14 Review
Impressive iDOO Queen Size Air Mattress: Quick Self-Inflation/Deflation, Comfortable 🛏️ Blow Up Bed for Home, Camping, and Travel - 80x60x18in, 650lb MAX
4 Review
🔌 AGPtEK Electric Air Pump: Portable Quick-Fill Inflator/Deflator for Camping, Boats, Mattresses & More!
3 Review
🛏️ SleepLux Durable Inflatable Air Mattress: Built-in Pump, Pillow, USB Charger – 15" Tall Twin Comfort
5 Review
🔌 High-Power Electric Air Pump for Inflatable Pool Toys - Quick-Fill Inflator Deflator Pump for Pool Float Raft Airbeds with 3 Nozzles, 320W, 110V AC, 1.6PSI, Air Flow 26CFM
7 Review