How do you keep your baby warm when it’s cold outside? How about putting him to bed in a Merino Kids Baby Sleep Bag? Experts say bundling your tot up in heavy blankets and layers of clothing isn’t the best bet, and caution that overdoing it can increase the risk of SIDS. A natural Merino wool sleep sack, on the other hand, is breathable, which protects your baby from overheating. And lucky for you, Babysleepbags.com is giving a sleep bag away to one Inhabitots reader! The winner will receive a standard weight Merino Kids Baby or Toddler Sleep Bag in the color of their choosing. Depending on which style is chosen, this prize is worth up to $140! For more info on Merino Kids Sleep Bags read our senior editor Beth Shea’s sleep sack review. Find out how to enter for your chance to win after the jump.

Here’s how to enter to win a Merino Kids Baby or Toddler Sleep Bag from Babysleepbags.com.

1) Sign up for Inhabitots’ weekly newsletter (if you haven’t already!). We’ll be notifying the winner in our newsletter – so you need to sign up and receive our newsletter to find out if you have won.

2) Like Inhabitots on Facebook.

3) Add a comment to this post with your answer to the following question: What’s your favorite thing to do with your family when it’s cold outside?

For a little extra karma feel free to follow Babysleepbags on Twitter and like them on Facebook, too.

Contest, open to US residents only, ends Tuesday, March 1st, 2011 at 12 midnight EST. Winner will be announced in the following week’s newsletter!

+ Merino Kids Baby Sleep Bag $119.99

+ Merino Kids Toddler Sleep Bag $139.99

+ Babysleepbags.com