Couple	Sleep-Related Words	Number of Syllables	Frequency of Occurrence	Word Length	Neutral Words	Number of Syllables	Frequency of Occurrence	Word Length
1	BUIO (dark)	2	93%	4	PENNA (pencil)	2	94%	5
2	TRISTE (sad)	2	98%	6	SPAZI (clearances)	2	98%	5
3	CONFLITTO (conflict)	3	91%	9	ARBITRO (referee)	3	93%	7
4	CUSCINO (pillow)	3	89%	7	PELLICCIA (fur)	3	88%	9
5	DISPERATO (desperate)	4	84%	9	CICLAMINO (cyclamen)	4	81%	9
6	DISASTROSO (disastrous)	4	88%	10	SVILUPPATO (developed)	4	93%	10
7	MATERASSO (mattress)	4	87%	9	CREATURA (creature)	4	89%	8
8	INADEGUATO (inadequate)	5	88%	10	INNAMORATO (valentine)	5	90%	10
Mean (SD)		3.38 (1.06)	89.75% (4.27%)	8.00 (2.14)	Mean (SD)	3.38 (1.06)	90.75% (5.06%)	7.88 (2.03)
Couple	Neutral Words	Number of Syllables	Frequency of Occurrence	Word Length	Neutral Words	Number of Syllables	Frequency of Occurrence	Word Length
1	CORDA (chord)	2	95%	5	PASTI (meals)	2	95%	5
2	STARE (stand)	2	99%	5	CREMA (cream)	2	98%	5
3	BOTTIGLIA (bottle)	3	92%	9	ACCIAIO (steel)	3	96%	7
4	RINFRESCO (refreshment)	3	87%	9	PANINO (sandwich)	3	85%	6
5	SPECULARE (speculates)	4	81%	9	OBBEDIRE (obey)	4	84%	8
6	VOLANTINO (brochure)	4	91%	9	ADOTTATO (borrowed)	4	91%	8
7	ORCHIDEA (orchid)	4	89%	8	PATRIOTA (patriot)	4	90%	8
8	ABITUDINE (habit)	5	89%	9	COLLABORAZIONE (featuring)	6	97%	14
Mean (SD)		3.38 (1.06)	90.38% (5.37%)	7.88 (1.81)	Mean (SD)	3.50 (1.31)	92.00% (5.40%)	7.63 (2.88)