I'm going to take a different approach to your insomnia and try to work on the root cause. Yeah, it could be turning the TV on. If you can identify the root cause and eliminate that, then you should be able to sleep. Here are some areas to look:
1. Stress/Worry: Is anything stressing you out or are you worried about something? I've found that when this is the case for me, it's difficult for me to go to sleep. Stress & worry can be over a number of things. I use prayer, God's Word, and an energy psychology method called EFT (Emotional Freedom Technique) to help me properly deal with worry & stress in my mind, spirit, & body. It says in Phil 4:6-7 says, "6Do not be anxious about anything, but in everything, by prayer and petition, with thanksgiving, present your requests to God. 7And the peace of God, which transcends all understanding, will guard your hearts and your minds in Christ Jesus."
2. Relationships: How are your relationships with others, with God? Is everything right in your relationships? When I have held grudges or been angry against people, this has caused me to have some sleepless or at least very restless nights. Romans 12:18 says, "18If it is possible, as far as it depends on you, live at peace with everyone."
3. Diet/Exercise: Have you been getting enough exercise and eating healthy for your body? Has anything changed in your diet, like have you been consuming caffeine, eating too many sweets, etc? These can cause disruptions and hinder sleep. Exercise in moderation helps keep the body in shape. If you give your body the foods/nutrients that it requires and keep your body in balance, you should ideally have the absence of disease and everything should be functioning well. In I Cor. 6:19, "19Do you not know that your body is a temple of the Holy Spirit, who is in you, whom you have received from God? You are not your own; "
These are the 3 main areas that encompass so much. A lot of times we kid ourselves and say all these things are good, but in reality, they aren't. For example, a friend of mine had a similar problem. Her diet is very poor, she consumes caffeine on a regular basis, gets little to no exercise. However, she is not normally a stressed out person, doesn't worry and keeps her relationships well. The one area she didn't do so well in was #3. It does make an impact.
~Doris