<p>A loose blanket doesn't belong in a crib, and a baby who has learned to kick will not stay under one anyway. A sleep sack solves both problems: the warmth stays on the baby, and there is nothing loose in the crib to worry about at 3am.</p>
<p>Ours come in two weights, so you can match the room instead of guessing. <strong>1.0 TOG</strong> for a room around 69&ndash;74&deg;F, worn over short-sleeve pajamas. <strong>2.5 TOG</strong> for a winter room around 61&ndash;68&deg;F, worn over a long-sleeve set. Bamboo viscose lining means the sack breathes rather than trapping heat &mdash; the usual complaint with heavier polyester sacks.</p>
<h3>Choosing a TOG</h3>
<ul>
<li><strong>1.0 TOG</strong> &mdash; warm rooms, spring and summer, layered over short sleeves</li>
<li><strong>2.5 TOG</strong> &mdash; cool rooms, fall and winter, layered over long sleeves</li>
<li>Sizes XS, S, M and L &mdash; check the size guide for weight and height ranges</li>
<li>Machine wash cold, tumble dry low</li>
</ul>
<p><strong>Sizes XS to L &middot; 1.0 and 2.5 TOG &middot; $39</strong></p>
<p>Ships in 5&ndash;9 business days. Free US shipping over $50.</p>