sleeping on trains and airplanes

i slept one night in a train between rishikesh and delhi. next night i slept on a plane between delhi and moscow. next night i slept on a train between moscow and st.petersburg. then i slept one night in st.petersburg in a house for a change. last night i slept in a train between st.petersburg and moscow. next night i'll sleep on a plane between moscow and berlin. the night i slept in a house i didn't sleep well, because the house was not moving at all.