According to the makers of the Smarttress,
"Smarttress with Lover Detection System is a revolutionary mattress composed of 24 intelligent sensors capable of capturing any “suspicious” bed movement. If you are not at home, Smarttress will send an alert to your mobile when the mattress is being used."
The mobile goes off.
You tear home.
Burst open the door.
And it's the dog jumping on the bed.
At nearly $2,000 a pop you're better off hiring a Private Detective to hide under the bed.
Hat tip to the guys at entertainment.ie