Table 3 Perceived feasibility of the Zmachine
Answer categories | All participants (n = 29) | Adults (n = 16) | Children (n = 13) | |
|---|---|---|---|---|
To which degree were you bothered by the Zmachine before, during, or after sleep? | Very high | 0 (0.0) | 0 (0.0) | 0 (0.0) |
High | 1 (3.5) | 0 (0.0) | 1 (7.7) | |
Medium | 9 (31.0) | 5 (31.3) | 4 (30.8) | |
Low | 5 (17.2) | 1 (6.3) | 4 (30.8) | |
Very low | 9 (31.0) | 5 (31.3) | 4 (30.8) | |
Not at all | 5 (17.2) | 5 (31.3) | 0 (0.0) | |
I don’t know | 0 (0.0) | 0 (0.0) | 0 (0.0) | |
Do you think that the Zmachine had an influence on your sleep quality? | Yes, I slept poorer | 5 (17.2) | 4 (25.0) | 1 (7.7) |
No | 22 (75.9) | 11 (68.8) | 11 (84.6) | |
I don’t know | 2 (6.9) | 1 (6.3) | 1 (7.7) | |
Did you experience more awake periods during sleep? | Yes | 4 (13.8) | 2 (12.5) | 2 (15.4) |
No | 25 (86.2) | 14 (87.5) | 11 (84.6) | |
Did you have trouble falling asleep because of the Zmachine? | Yes | 3 (10.3) | 1 (6.3) | 2 (15.4) |
No | 26 (89.7) | 15 (93.8) | 11 (84.6) | |
Did the cables bother you during sleep? | Yes | 8 (27.6) | 4 (25.0) | 4 (30.8) |
No | 21 (72.4) | 12 (75.0) | 9 (69.2) | |
Did the equipment bother you when you got up during the night? | Yes | 2 (6.9) | 2 (12.5) | 0 (0.0) |
No | 27 (93.1) | 14 (87.5) | 13 (100.0) | |
Did you find it challenging to apply the sensors? | Yes | 2 (6.9) | 1 (6.3) | 1 (7.7) |
No | 27 (93.8) | 15 (93.8) | 12 (92.3) | |
Did you find it challenging to remove the sensors? | Yes | 5 (17.2) | 0 (0.0) | 5 (38.5) |
No | 24 (82.8) | 16 (100.0) | 8 (61.5) | |
Did you experience skin irritation on the spots where the sensors were applied? | Yes | 12 (41.4) | 6 (37.5) | 6 (46.2) |
No | 17 (58.6) | 10 (62.5) | 7 (53.9) | |
Did you find it time consuming to apply the Zmachine? | Yes | – | 3 (18.8) | – |
No | – | 13 (81.3) | – | |
Did you feel like you were being monitored? | Yes | – | 0 (0.0) | – |
No | – | 16 (100.0) | – | |
Did sleeping with the Zmachine make your child sad or unhappy? a | Yes | – | – | 0 (0.0) |
No | – | – | 11 (100.0) | |
Did your child oppose sleeping with the Zmachine? a | Yes | – | – | 0 (0.0) |
No | – | – | 11 (100.0) | |
Was your child bothered by glue residue? a | Yes | – | – | 5 (45.5) |
No | – | – | 6 (54.6) | |
Did your child find it challenging to be the only child in the household who had to sleep with the Zmachine? a | Yes | – | – | 0 (0.0) |
No | – | – | 11 (100.0) |