Question: how to get a 1 year old to sleep in cot?
Answer: Establish a bedtime routine. A consistent bedtime routine is really important, since it bridges that giant gap between awake time and asleep time (another big transition). ... 
Put him in his crib calmly. When the bedtime routine is over, try putting him in his crib quietly. ... 
Stand by for soothing. ... 
Be consistent.