The eufy smart sock is a must have because of the peace of mind it offers. I can’t tell you how many times this calmed my anxiety and let me sleep through the night worry free. Even when baby is napping in the other room being able to monitor their heart rate is such a way to ease the nerves. The other popular alternative was the Owlet but there have been reports of babies being burned from that particular monster so the eufy was a better option. $199.00 but you can usually catch a sale and grab it for less during the holiday season.