I am renting a house that has beautiful wooden venetian blinds - that I can not remove or replace - but they are not very effective at blocking the ambient night light that is abundant on my street. This affects my sleep hygiene - it is strongly recommended to sleep in as dark environment as possible.
Now the challenge is:
- I can not remove the existing blinds
- I want to keep the room light during day so no sticker or dark foil
- my budget is limited and I would like to avoid buying and installing heavy curtains
How do I darken the room on a budget? Any DIY tips are welcome.