Save up to 45% off Halo SleepSacks at Zulily. Some best bets are the pictured Blue Car SleepSack, which drops from $28 to $12.99, a price low by $4, or this Blue Safari Fleece SleepSack, a price low by $2. Check out the rest of the sale here. Shipping starts at $5.95 but earns you free shipping for the rest of the day on additional purchases. An e-mail address is required to view this sale. There is no sales tax (except KY, NV, OH, WA).