Presence/weight sensor on my bed, to trigger sleep tracking

I have a problem when tracking, sometimes i fall asleep , and havent pressed the “Track sleep” button,
also, sometimes i come tired from work, lay on the bed, and end up sleeping a few hours without even tracking it … This makes my tracking data wrong, as i record less hours of sleep than i’m actually having in the day

my sleep deficit on the app is adding up, and it isn’t like that
i would like to have Presence/Weight sensors on my bed, that would trigger the sleep tracking,

or even just adding a feature to send a signal to the app (maybe a web link to trigger it) from any sensor device, and we will make our customized sensors,
or somebody will just start producing these products for your app(these sales will work also as advertising for you)

Many thanks in advance,