Purchase blinds that are 1 2 in 1 3 cm or so smaller than the width of your window but long enough to cover the entire window.
Block light around door.
If you are seeing light through exterior doors you may need to simply replace the worn weather stripping.
With heating costs going through the roof here s an easy way to keep heat from slipping out your doors too.
Upgraded door draft stopper for large gap widened door sweep seal gap up to 1 2 5 for interior exterior and garage doors keeping draft dust noise unwanted light and pests out 3 w x 37 l black.
I found that by blocking the light coming from under the door helped a lot with sleep.
Pull the old stripping off and clean the door casing with rubbing alcohol to make a smooth dust free surface for the new stripping to adhere to easily.
You can also purchase room darkening curtains and just hang them over the door these curtains are made of a kind of fabric that blocks light people who work at night and sleep during the day purchase them.
Visit your local home goods store for blackout blinds which help prevent any light from entering the room.
Adjust the door threshold with a no.
Move it up or down until the door closes smoothly with no light seeping through.
Install the blinds before adding anything else to your window like curtains.
I have them on the windows in my bedroom it can be bright and sunny outside and completely dark in my bedroom because of them.
Blackout curtains or shades.
Cut a new length of stripping to fit into the groove and either nail it or stick it.
Roller shades naturally have large gaps to the sides of the fabric so these light blocking strips are the perfect solution for maximum light control.
Install blackout blinds that are mounted to your windows.
Take 30 minutes and replace the weather stripping and door sweeps around your steel entry doors.