Needless to say, if you meditate for more than an hour and the meditation is going well, don't stop simply because you have gone beyond your normal time. Pick a spot in your bedroom or another room to meditate in. Put a small table there. Place a pretty rug in front of your meditation table. Place a candle on the table.
Flowers are nice too.
It is easiest to meditate by candlelight. During meditation, your eyes become sensitive. Candlelight is a soothing and natural light. Some enjoy burning insence. Good insence contains aromatic oils that soothe your central nervous system, and the fragrance of insence is nice.