Should the SNOO mattress pad always be used with a fitted sheet?

Articles in this section

• Setting up Shoo
• Using The SNOO Sack
• Does the SNOO sack come in different colors?
• What are the weight ranges for the SNOO sacks?
• What materials are used to make the SNOO Sack?
• Does the SNOO Sack come in different sizes?
• How do I keep my baby's arms from coming out of the SNOO Sack?
• Is the SNOO mattress waterproof?
• Can I use another brand fitted sheet in the SNOO?
• Can I use a mattress other than the one provided with SNOO?