We are transitioning our 6 month old LO out of his Merlin's Magic Sleep Suit and into a regular sleepsack. We loved the Halo swaddle sleepsacks when he was a tiny baby. Any recommendations for a sleepsack/wearable blanket? Our house is about 65 degrees at night during the winter so I'm wanting something that will keep him warm. I'm leaning toward the microfleece Halo sleepsack, just wondering if anyone has something else they'd recommend? Thanks!