These are 2-layer cotton with batting in the middle and in the northeast baby can wear them year round! My only gripe is that the size only goes up to 24 months (PLEASE offer these in 24-36 months or 2-3T).

The best sleep sack! I've purchased other ones but nothing compares to this one. It's nice and thick, keeps infant warm at night. Washed multiple times and it still holds its quality. Will likely buy another set as baby grows.

These are awesome quality! They feel like a cozy cotton comforter. That perfect in between weight that you could use winter / spring / fall. Even summer if nights are cool. So happy with the 100% cotton baby items from Member's Mark!

These sleep sacks are very nice. They're soft cotton inside and out, warm, durable, and cute! I love the ribbed fabric and the colors. My baby likes them also. It's nice to know she's safer this way than with a blanket. The extra room in the bottom allows her to kick and extend her legs comfortably, and the fabric tab the top keeps the zipper up and out of the way. I want them in every size for her!

Absolutely love these! Our baby slept so well in them. They are soft and roomy for the babies legs. I do find they ran a little big but gave the baby room to grow into. The color options are adorable and we enjoyed the gender neutral ones and can use them for multiple kiddos!

Exactly What We Needed for Cold Nights! This sleep sack is a game-changer for our baby’s sleep routine! The material is super soft and thick without being too heavy or stiff — perfect for cooler nights when you don’t want to worry about blankets. Our little one stays warm and cozy all night, and we’ve definitely noticed longer, more restful sleep stretches since using it. The zipper is high quality and zips from the bottom too, which makes middle-of-the-night diaper changes so much easier. We also love that it washes well — still just as fluffy and soft after several washes with no pilling or shrinking. Highly recommend if you’re looking for a warm, safe, and snuggly option for your baby to sleep in this winter or even if you sleep with your room cold!

Can’t beat the value of these sleep sacks which means you can afford to buy multiples. The material is 100% organic cotton and very soft and comfortable. The two way zipper is the best. I will be buying some for baby gifts as they would make a great shower gift.

These are so soft and plush. We love sleep sacks for our little ones to keep them warm but provide some freedom of movement. The top is snug which helps keep it in place while the base is wide and roomy. Too wide and roomy for the age range. Our kids run on the smaller side and swim in this. Only downside, size accordingly

The 2pc sleep sacks from member’s mark are soft, high quality, and seem comfortable. My daughter normally uses a higher end more expensive brand sleep sack but we got to try these out. The fabric is soft and a good weight. Not too heavy but not too light. The zipper works well. She slept well in it!

These worked like a charm, given that we like having the house cooler than normal, not only do they provide the warmth but have help soothe out little one at night. We've noticed they've been sleepijg through the entire night without any fussiness or middle of the night waking up. They come in a pack of 2 and there are a few different color options. Highly recommend for someone looking for some economical sleep sacks, since they'll outgrow them quickly.