Bought a cot and mattress (Krummelur) from Ikea, but don't know which way is up for the mattress. One side is ribbed and the other is flat, so I assume orientation matters.
Madrass til sprinkelseng, 60x120x8 cm. | FINN torget
Krummelur | Bedbuyer Review (in 2021) - bedbuyer.com.au
IKEA KRUMMELUR Foam mattress Cot Waterproof | Shop at Mercari from Japan! | Buyee bot-online
Test: Ikea Krummelur | Forbrugerrådet Tænk
IKEA baby crib / cot (with or without new Krummelur mattress), Babies & Kids, Baby Nursery & Kids Furniture, Cots & Cribs on Carousell