Table 2.

Description of included studies.

First author	Intervention	Delivery	Treatment length	Follow-up length	Posta	Follow -upb	Adherence measure
Oosterhuis [31]	SEc, SHd, CThe, RXf	TVg	8 weeks	4.5 months	Qh	Q	N/Ai
Rybarczyk [32]	RX, SCj, SRk, CTh, SH	Audiotape	6 weeks	4 months	Q&Dl	Q&D	N/A
Ström [37]	CBT-Im	Internet	5 weeks	9 months	Q&D	D	N/A
Suzuki [38]	CBT-I	Internet	2 weeks	3 weeks	Q	Q	N/A
Ritterband [39]	CBT-I	Internet	9 weeks	6 months	Q&D	Q	N/A
Van Straten [40]	CBT-I	TV	6 weeks	None	Q&D	N/A	Self-report
Vincent [41]	CBT-I	Internet	5 weeks	4 weeks	Q&D	Q&D	Self-report
Riley [33]	ASSn/CBT-I	Device	6 weeks	6 weeks	Q&D	Q&D	N/A
Lancee [42]	CBT-I	Internet	6 weeks	4 weeks		Q&D	Self-report
Ritterband [43]	CBT-I	Internet	6-9 weeks	None	Q&D	N/A	Log
Espie [15]	CBT-I	Internet	6 weeks	8 weeks	N/A	Q&D	Log
Haimov [36]	CTro	PCp	8 weeks	None	Q&D	N/A	N/A
Lancee [44]	CBT-I	Internet	6 weeks	4 weeks	N/A	Q&D	Self-report
Lancee [45]	CBT-I	Internet	6 weeks	6 months	Q&D	Q&D	Log
Lawson [34]	ASS	Appq	7 days	None	Q	N/A	Log
Van Straten [46]	CBT-I	Internet	6 weeks	3 months	Q&D	Q&D	Log
Holmqvist [47]	CBT-I	Internet	6 weeks	8 weeks	Q&D	Q&D	N/A
Lipschitz [35]	MBBr	Internet	3 days	1 week	Q	Q	Self-report

^aPostintervention measurement instrument

^bFollow-up measurement instrument

^cSleep education (SE)

^dSleep hygiene (SH)

^eCognitive therapy (CTh)

^fRelaxation (RX)

^gTelevision (TV)

^hQuestionnaire (Q)

ⁱNot applicable (N/A)

^jStimulus control (SC)

^kSleep restriction (SR)

^lSleep diary (D)

^mCognitive behavioural therapy for insomnia (CBT-I)

ⁿActive sleep sampling (ASS) device

^oCognitive training (CTr) (CogniFit)

^pPersonal computer (PC)

^qMobile phone app (app)

^rMind-body bridging (MBB)