We bought three of these mattress covers last year and they are wonderful. (We wash them quite often, so it's good to have a few.) They fit both 3-inch and 5-inch mattresses and add a nice layer of breathable, quilted fabric between the sheet and the mattress added. They won't shrink or lose their shape and are easy to pull over the mattress thanks to the wide elastic hem.
UOMNY Soft 100% Cotton Fitted Crib Sheet For Standard Crib And Toddler Mattresses - Safari Animal Jungle Theme Nursery Bedding For Boys And Girls - 1 Pack Toddler Sheet
28 Review
2.5 TOG Cotton Toddler Sleep Sack With Feet For Winter, Long Sleeve Baby Wearable Blanket For 2T-3T Weighted Sleep, Comfortable Sleep Sacks With Legs
39 Review
Experience Comfort And Playtime With Ingenuity Cozy Spot Reversible Duvet Activity Gym And Play Mat - Calla, 33X33X19 Inch
48 Review
Soft Fleece Swaddle Blanket For Newborn Baby Boys And Girls - XMWEALTHY Stroller Wrap In Dark Blue
30 Review
Pampers diapers New Baby Dry 2, 4-8 kg, 94 pcs., white
87 Review
Unilove Hug Me Plus Plum Pink: 3-In-1 Bedside Sleeper & Portable Bassinet For Newborns With Enhanced SEO
33 Review
COSYLAND Nursery Step Stools For Children - Safe And Sturdy Tower Helper With Anti-Drop Railing And Non-Slip Mat
32 Review
Large Toy Box Chest For Boys & Girls - 24.5"X13" X16", Flip-Top Lid, Divider, Collapsible Storage Bins For Nursery, Playroom, Closet & Living Room | Homyfort (Black)
39 Review