Quantitative results and joint display
Most patients interviewed either had an improvement or at least no deterioration in sleep efficiency. Supplementary Table S1 provides a joint display of baseline ISI and baseline and subsequent sleep efficiency data together with summary extracts from any notes made by the nurses during the SRT sessions and a ‘representative’ quote from each patient regarding the SRT process. This indicated, not unexpectedly, that participants who found SRT a positive process were more likely to show improvements in sleep efficiency, whereas those that struggled with SRT did not. Fidelity of nurse delivery was found to be high throughout the trial by the independent reviewer (audiorecordings for session 1, median percentage fidelity score 100% [IQR 96–100], and for session 3, median percentage fidelity score 87.5%, [IQR 75–100]). For full details see Kyle 