Motion transfer is when your partner's movements on one side of bed transfer to your side - and disturb your sleep. Minimizing this ensures that your partner moving about at night doesn't bother you. All our mattresses are designed to keep all motion transfer to a minimum, whether all-foam or hybrid spring. They're all equipped with layers of memory foam that absorb excess movement. For those worried about jumpy spring mattresses, no need to fret. Those were a result of historical spring mattress designs, whereas our hybrid spring mattresses are made with modern pocket springs - individually wrapped coils that move independently of each other to ensure no movement is transferred between them.