This sleep tracking baby sock is one my best purchases as a new parent (and it's 20% off)

The Owlet Dream Sock is a sleep-tracking baby sock available for $239 through Presidents' Day, a 20% discount (and it's FSA/HSA eligible). Additionally, the Owlet Dream Cam 2 baby monitor is 35% off at $103, and the Owlet Dream Duo bundle is $80 off at $319.

Also: The 55+ best Amazon Presidents' Day tech deals live right now

ZDNET's key takeaways

• The Owlet Dream Sock is an FDA-cleared baby sleep tracker that costs $299 and is FSA/HSA-eligible, though it is currently discounted for a limited time.
• It goes beyond your standard baby monitor by tracking your child's heart rate, blood oxygen, and sleep patterns. It has three alarms: a yellow incorrect fit alarm, a purple abnormal reading alarm, and a blue alarm when the sock is out of range or low battery.
• While false low oxygen and abnormal heart rate alarms are exceedingly rare (I ...